Display device and manufacturing method thereof

Abstract

A display device including a substrate, a plurality of data lines disposed on the substrate, a first color filter disposed between a first data line and a second data line that are adjacent to each other among the data lines, a first dummy color filter configured to overlap a third data line that is adjacent to the first data line, be separated from the first color filter, and display a same color as that of the first color filter, and a second color filter disposed at a region between the first data line and the third data line and configured to display a color different from that of the first color filter. A thickness of the first dummy color filter is smaller than that of the first color filter, and the second color filter is disposed on the first dummy color filter.

What is claimed is: 
     
       1. A display device, comprising:
 a substrate; 
 a plurality of data lines disposed on the substrate; 
 a first color filter comprising a first material disposed between a first data line and a second data line that are adjacent to each other among the plurality of data lines; 
 a first dummy color filter comprising the first material, disposed over a third data line that is adjacent to the first data line among the plurality of data lines, and separated from the first color filter; and 
 a second color filter comprising a second material that is different from the first material and disposed at a region between the first data line and the third data line; 
 a third color filter comprising a third material that is different from the first and second materials, disposed on the first dummy color filter, and disposed at a region between the third data line and a fourth data line among the plurality of data lines, wherein the fourth data line is adjacent to the third data line; and 
 a second dummy color filter comprising the third material, disposed over the first data line, and separated from the third color filter, 
 wherein a surface of the second color filter facing the substrate is disposed on the second dummy color filter, 
 wherein a thickness of the first dummy color filter is smaller than that of the first color filter, 
 wherein the second color filter is disposed on the first dummy color filter, and 
 wherein a width of the first data line and/or the third data line is smaller than a width of the second data line. 
 
     
     
       2. The display device of  claim 1 , wherein an edge of the second color filter and an edge of the third color filter overlap the third data line. 
     
     
       3. The display device of  claim 2 , wherein an edge of the first dummy color filter overlaps the third data line. 
     
     
       4. The display device of  claim 3 , wherein a thickness of the first dummy color filter is smaller than half of a thickness of the first color filter. 
     
     
       5. The display device of  claim 4 , wherein a width of the third data line is smaller than a width of the first data line and/or the second data line. 
     
     
       6. The display device of  claim 1 , wherein edges of the first color filter and the second color filter overlap the first data line. 
     
     
       7. The display device of  claim 6 , wherein a thickness of the second dummy color filter is smaller than half of a thickness of the third color filter. 
     
     
       8. The display device of  claim 1 , further comprising
 a third dummy color filter comprising the second material, disposed over the second data line, and separated from the second color filter. 
 
     
     
       9. The display device of  claim 8 , wherein the third dummy color filter is disposed on the first color filter. 
     
     
       10. The display device of  claim 9 , wherein an edge of the first color filter overlaps the second data line. 
     
     
       11. The display device of  claim 10 , wherein a thickness of the third dummy color filter is smaller than half of a thickness of the second color filter. 
     
     
       12. The display device of  claim 1 ,
 wherein a surface of the first dummy color filter facing the substrate is disposed on the third color filter. 
 
     
     
       13. The display device of  claim 12 , wherein edges of the second color filter and the third color filter overlap the third data line. 
     
     
       14. The display device of  claim 13 , wherein an edge of the first dummy color filter overlaps the third data line. 
     
     
       15. The display device of  claim 14 , wherein a thickness of the first dummy color filter is smaller than half of a thickness of the first color filter. 
     
     
       16. The display device of  claim 15 , wherein a width of the third data line is smaller than a width of the first data line and/or the second data line. 
     
     
       17. The display device of  claim 1 , further comprising:
 a liquid crystal layer disposed on the substrate; 
 a common electrode disposed between the liquid crystal layer and the plurality of data lines: 
 wherein the common electrode disposed on the first and second color filters. 
 
     
     
       18. The display device of  claim 17 , further comprising:
 a light blocking member disposed on the second color filter between the substrate and the liquid crystal layer. 
 
     
     
       19. The display device of  claim 1 , wherein:
 a top surface of first dummy color filter is covered by the third color filter and the second color filter; and 
 a top surface of the second dummy color filter is exposed from the first color filter and the second color filter. 
 
     
     
       20. A manufacturing method of a display device, the method comprising:
 disposing a plurality of data lines on a substrate; 
 disposing a first color filter at a region between a first data line and a second data line, among the plurality of the data lines, and a first dummy color filter to overlap a third data line that is adjacent to the first data line, among the plurality of data lines, and to be separated from the first color filter by coating a first color filter material on the substrate and the plurality of data lines and exposing the first color filter material with a photomask comprising a halftone region; 
 disposing a second color filter at a region between the third data line and a fourth data line that is adjacent to the third data line, among the plurality of data lines, and disposing a second dummy color filter to overlap the first data line and to be separated from the second color filter by coating a second color filter material on the substrate and the plurality of data lines and exposing the second color filter material, wherein the second color filter is disposed on the first dummy color filter; and 
 disposing a third color filter at a region between the first data line and the third data line and on the first dummy color filter by coating a third color filter material on the substrate and the plurality of data lines and exposing the third color filter material, 
 wherein the first dummy color filter is formed to correspond to the halftone region of the photomask, 
 wherein a surface of the third color filter facing the substrate is disposed on the second dummy color filter, and 
 wherein a width of the first data line and/or the third data line is smaller than a width of the second data line. 
 
     
     
       21. The manufacturing method of  claim 20 , wherein the disposing of the third color filter comprises disposing a third dummy color filter on the first color filter to overlap the second data line and to be separated from the third color filter. 
     
     
       22. The manufacturing method of  claim 20 ,
 wherein a surface of first dummy color filter facing the substrate is disposed on the second color filter. 
 
     
     
       23. The manufacturing method of  claim 20 , wherein:
 a top surface of first dummy color filter is covered by the third color filter and the second color filter; and 
 a top surface of the second dummy color filter is exposed from the first color filter and the third color filter.